General

  • Target

    6c179c2b5cda41d940a552f19def20711f7389d3188d7646c45b7963f2049667

  • Size

    657KB

  • Sample

    220904-kqlncsdbbp

  • MD5

    408866829065c70ccb93d6af75b2f04b

  • SHA1

    c2abb3f1434d1f1996dc6569f1d289eda41edcca

  • SHA256

    6c179c2b5cda41d940a552f19def20711f7389d3188d7646c45b7963f2049667

  • SHA512

    724ed56fc9409f77e8c804101f45de8ccf453642b59f124c647dc3ef5936ce2adbb74befdd5d1590cc3b9fe7ef1f9a864128b545ae5746cb822f22c19244af45

  • SSDEEP

    6144:VoxIpwTnoNlR/DU7yhezwmQsrmMxzG8pCoHM3g:VoxIpwTnoDR/DUmhwxQspo8VsQ

Malware Config

Extracted

Family

colibri

Version

1.2.0

Botnet

Build1

C2

http://zpltcmgodhvvedxtfcygvbgjkvgvcguygytfigj.cc/gate.php

http://yugyuvyugguitgyuigtfyutdtoghghbbgyv.cx/gate.php

Targets

    • Target

      6c179c2b5cda41d940a552f19def20711f7389d3188d7646c45b7963f2049667

    • Size

      657KB

    • MD5

      408866829065c70ccb93d6af75b2f04b

    • SHA1

      c2abb3f1434d1f1996dc6569f1d289eda41edcca

    • SHA256

      6c179c2b5cda41d940a552f19def20711f7389d3188d7646c45b7963f2049667

    • SHA512

      724ed56fc9409f77e8c804101f45de8ccf453642b59f124c647dc3ef5936ce2adbb74befdd5d1590cc3b9fe7ef1f9a864128b545ae5746cb822f22c19244af45

    • SSDEEP

      6144:VoxIpwTnoNlR/DU7yhezwmQsrmMxzG8pCoHM3g:VoxIpwTnoDR/DUmhwxQspo8VsQ

    • Colibri Loader

      A loader sold as MaaS first seen in August 2021.

    • Detectes Phoenix Miner Payload

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Tasks